In this book I have tried to achieve one purpose: to explain how war is waged on the field from the field command post. For it is there, midway between the conference table and the foxhole, that strategy is translated into battlefield tactics; there the field commander must calculated the cost of rivers, roads and hills in terms of guns, tanks, tonnage- and most importantly in terms of the lives and limbs of his soldiers. How, then, did we reach our critical decisions? Why and how did we go where we did? These are the critical questions I have been asked most often. And these are the questions that gave me justification for writing this book.